Oregon Revised Statutes Miscellaneous Matters Related to Government and Public Affairs § 190.540

(1) The population shown in the certificate of population filed pursuant to ORS 190.520 or 190.530 shall be the official population of the city, county or other area covered by the certificate until a later certificate covering such city, county or other area is filed by Portland State University.

(2) After a certificate of population is filed pursuant to ORS 190.520 or 190.530, the population of a city, county or other area as shown in the certificate shall be the official and exclusive basis for determining per capita allocation and payment of funds to such city, county or other area under ORS 366.785 to 366.820 and 471.810 until the filing by the university of a later certificate for such city, county or other area.